[PATCH v2] gpio: Add Avionic Design N-bit GPIO expander support

[Thierry Reding]

On Tue, Jul 31, 2012 at 05:03:05PM -0500, Rob Herring wrote:
> For nr-gpios, I think it is typically not needed. Generally, you will
> know how many gpio lines the h/w has based on the compatible string. If
> this part really is the same part but different packages with different
> numbers of gpio, then this property makes sense.

That's exactly what I need it for. The controller is synthesized in a
CPLD, so technically the part is always the same, but the configured
logic can implement any number of GPIOs.

Thierry
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